Now that the US is becoming more and more like a police state everyday, and that fact is finally starting to be recognized, you may want to revise your typical checklist for traveling.
There’s no doubt in mind that if the person in the video below was not filming, they would have been dragged out of their vehicle, detained, and harassed. Granted the video is rather annoying and it would have been much easier to simply comply with authority’s demands, this video does actually portray a US citizen exercising their rights. Government doesn’t like when you exercise your rights, so they try to impede it every chance they get. Much of this authority is placed on the individual, not necessarily a standard procedure.